Conurus left a very interesting message on the Cameralbas forum: “We are developing an electronic adapter which interfaces a Canon EF lens to a Sony NEX body. You just set the aperture on the Sony NEX body and shoot (or let the camera decide in Program or Shutter Priority modes). We have already built a successful prototype and is in the process of putting this in production. For more information, look for “conurus” on Twitter, Youtube or Google.”
The website of the compnay is: http://en.conurus.com/faq.html
P.S.: See the list of all current EOS to NEX manual adpaters on [shoplink 5932 ebay]eBay (Click here)[/shoplink].